'Trichome' definitions:

Definition of 'Trichome'

From: GCIDE

Trichome \Trich"ome\, n. [See Trichomatose.] (Bot.) A hair on the surface of leaf or stem, or any modification of a hair, as a minute scale, or star, or gland. The sporangia of ferns are believed to be of the nature of trichomes. -- {Tri*chom"a*tous}, a. [1913 Webster]